MCP4011T-103E/MC

Overview

The MCP4011T-103E/MC is a volatile, 6-bit digital potentiometer manufactured by Microchip Technology. It features a 10 kΩ nominal resistance with 64 taps and is housed in an 8-lead DFN (2x3 mm) package. The device operates on a supply voltage range of 1.8V to 5.5V for logic and 2.7V to 5.5V for resistor characteristics. Control is managed via a simple Up/Down (U/D) serial interface with a Chip Select (CS) pin. Key electrical parameters include a typical wiper resistance of 70 Ω at 2.7V and a temperature coefficient of 50 ppm/°C (absolute) or 10 ppm/°C (ratiometric).

Feature Summary

• 6-bit resolution providing 64 discrete tap positions.
• High-voltage tolerant digital inputs up to 12.5V.
• Low static current consumption of 1 µA maximum.
• Power-on recall of default mid-scale wiper setting.

Applications

• Variable gain control in audio circuits.
• Programmable voltage reference adjustment.
• Digital trimming of analog signal paths.

Procurement Notes

Verify the 'MC' suffix corresponds to the 8-lead DFN (2x3 mm) package configuration. Confirm the 'T' indicates tape and reel packaging if required for automated assembly. Ensure the 'E' suffix matches the extended temperature rating (-40°C to +125°C). Cross-reference the specific revision level against the latest datasheet DS20001978D.

Selection Notes

Select this component when a volatile memory type is acceptable, as settings are lost upon power loss. Use the U/D interface for simple microcontroller connections without SPI complexity. Consider the 10 kΩ value for general-purpose analog adjustments where moderate current handling is sufficient. Verify that the 1.8V minimum logic voltage meets the system's low-power requirements.

Part Context

This part belongs to the MCP4011/2/3/4 family of low-cost digital potentiometers. The MCP4011 variant specifically supports potentiometer configurations, whereas other family members may be optimized for rheostat use. The T-103E/MC designation specifies the 10 kΩ resistance, extended temperature grade, and DFN package form factor within this series.

Replacement Considerations

Direct replacements within the same package and interface include other MCP4011 variants with different resistance values (e.g., MCP4011T-502E/MC for 5 kΩ). For non-volatile memory requirements, consider the MCP41xxx series, though interface and pinout differences must be evaluated.